dartcv4

What's Changed

• Safety enhancement, memory management, Tree-shaking support, API-style ffigen, disable OpenCL by default. by @rainyl in #443
• Added charucos by @pariterre in #437
• Bump package_config from 2.2.0 to 3.0.0 in /packages/dartcv by @dependabot[bot] in #444
• docs(contributor): contributors readme action update by @github-actions[bot] in #445
• feat: add skip_build user define to bypass native build for CI unit tests by @jasaw in #446
• docs(contributor): contributors readme action update by @github-actions[bot] in #447

New Contributors

• @pariterre made their first contribution in #437
• @jasaw made their first contribution in #446

Full Changelog: v2.2.2...v2.3.0

• new: memory-safety fixes:
  • fix VecVec6f finalizer
  • fix strdup/calloc memory leaks
  • fix Mat.fromMat(copy: true) memory leak
  • add null-guards in logging
• new: idempotent dispose()/freeNative(), add isDisposed for all wrappers (P2 refactor, additive — no breaking API change)
• new: native-assets tree-shaking: link hook writes dartcv_keep.txt from recorded uses (@RecordUse) + finalizer symbols; CMake .def / --retain-symbols-file restrict exports; keep-list only written on AOT builds; new treeshake hook option (Dart 3.13+)
• new: use_opencl hook option to build OpenCV with OpenCL support, per-platform, default false, always disabled on ios
• new: regenerate FFI bindings through the ffigen FfiGenerator API (tool/ffigen.dart) with @RecordUse + record_use_mapping output
• bump ffigen to 21.0.0
• add dependencies: meta, record_use
• new: add CharucoBoard / CharucoDetector bindings (contrib module)
• fix(videoio): free native-allocated arrays in backend registry getters (memory leak); make hasBackend / isBackendBuiltIn exception-safe; skip unknown backend values in getBackends-family via VideoCaptureAPIs.maybeFromValue; always release probed cameras in enumerateCameras; support 16F in parseFrameFormat
• fix(videoio): writer tests write to per-test temp dirs (no shared-file race between parallel test files); silence OpenCV backend-probing warnings in videoio tests
• new: add skip_build hook user-define to bypass the native build entirely, for CI unit-test runs that never call into dartcv4's native code

What's Changed

• fix: iOS build fails - OpenCL/cl.h not found due to FORCE in cmake options by @abdelaziz-mahdy in #421
• Ci fix test publish by @rainyl in #422
• fix: explicitly disable all modules by default in cmake-options.cmake by @rainyl in #425
• fix(build): ensure opencv-contrib modules path is set correctly by @rainyl in #426
• fix: ensure aruco module is correctly built with required dependencies by @rainyl in #428
• add LineSegmentDetector + the detech method by @dupuchba in #430
• docs(contributor): contributors readme action update by @github-actions[bot] in #433
• chore: bump version to 2.2.2 and update documentation by @rainyl in #434
• Bump hooks from 1.0.3 to 2.1.0 in /packages/dartcv by @dependabot[bot] in #441

New Contributors

• @dupuchba made their first contribution in #430

Full Changelog: v2.2.1...v2.2.2

• new: add LineSegmentDetector support (imgproc module)
• bump native_toolchain_cmake to 0.3.1
• bump hooks to 2.1.0

bump opencv_dart to 2.2.1

• support setting custom cmake generator
• fix: Skip native build hook for web builds
• new: support enumerating videoio backends

What's Changed

• • add Mat.reinterpret, fisheye.solvePnPRansac, StereoBM by @rainyl in #374
• add camera_demo and videoio to readme#Demos by @rainyl in #376
• [opencv_core] disable videoio by @rainyl in #380
• Sync 2.x to main by @rainyl in #386
• Bump ffigen from 19.1.0 to 20.0.0 in /packages/dartcv by @dependabot[bot] in #392
• Merge 2.x to main, support stable hooks by @rainyl in #397
• add opencl functions, allow to disable opencl at runtime by @rainyl in #402
• explicitly set generator, use vs2019/2022 for windows by @rainyl in #407
• Build opencv from source by @rainyl in #411
• remove windows generator, use Generator.defaultGenerator by @rainyl in #413
• support setting custom generators by @rainyl in #416
• fix: Skip native build hook for web builds by @abdelaziz-mahdy in #418
• support get videoio backends by @rainyl in #417
• fix: windows CI by @rainyl in #420
• fix: iOS build fails - OpenCL/cl.h not found due to FORCE in cmake options by @abdelaziz-mahdy in #421
• Ci fix test publish by @rainyl in #422

Full Changelog: v1.4.3...v2.2.1+1

• fix: CMake definitions are not correctly passed when building ios

• fix: Explicitly disable building unused modules to reduce build time.

• fix: opencv-contrib modules are not correctly built when changing include modules.

• fix: aruco module is not correctly built when changing include modules.

• breaking change: support building from opencv source code, it's now the default behavior, since this version, prebuilt opencv static binary is no longer included.
• bump opencv version to 4.13.0
• NOTE: opencv 4.12.0 is the last version that provides prebuilt static binary.
• breaking change: change default include modules to imgcodecs imgproc.
• breaking change: change default excluded modules to calib3d dnn features2d flann freetype highgui objdetect photo stitching video videoio aruco img_hash quality wechat_qrcode ximgproc xobjdetect
• breaking change: since this version, FFMPEG is no longer included.

• NOTE: Breaking change.
• The minimum required dart sdk version is 3.10 that supports hooks (Native-Assets) stable.
• add stackBlur function in imgproc module.
• Breaking change: default included models: calib3d,features2d,imgcodecs,imgproc,objdetect,photo,stitching, default excluded modules:contrib,freetype,highgui,video,videoio,dnn.

• fix: C++ src not included

• add Mat.reinterpret
• add fisheye.solvePnPRansac, support mask for cv.threshold
• add StereoBM, StereoSGBM from calib3d module

• sync main branch, now support all methods in dartcv v1.1.6
• :tada: this version supports windows, linux, macos, android and ios, for platforms except ios, ffmpeg is also supported.

• bump dependencies
• add UMat
• [features2d] add more functions/constructions
• add custom loggers, support user-defined logger callback
• add cv.freetype module

• add Mat.reinterpret
• add fisheye.solvePnPRansac, support mask for cv.threshold
• add StereoBM, StereoSGBM from calib3d module

• add FlannIndexParams, FlannSearchParams, FlannKDTreeIndexParams
• add FlannBasedMatcher.create
• bump opencv to 4.12.0

• added approxPolyN.
• add more high-precision functions (arcLength2f, etc.) to imgproc module, https://github.com/rainyl/opencv_dart/pull/364
• breaking change: optional arg hierarchy of drawContours now change from Mat to VecVec4i type.

• remove deprecated MatType.toInt(), should use MatType.value instead
• add MatType.elemSize MatType.elemSize1
• remove deprecated (double x, double y, double z).asPoint3f (double x, double y).asPoint2f (int x, int y).asPoint VecPoint.toVecVecPoint
• add bin/gen_cmake_vars.dart for generating optional module vars for CMake

• add VideoCapture.grabAsync
• add Mat.fromBuffer to allow creating Mat from self-managed buffer
• add copyData parameter to Mat.fromVec
• remove Mat.fromPtr, merge it to Mat.fromMat
• add Mat.atU8, Mat.setU8, etc.
• remove deprecated Mat.copyToWithMask, List<Mat>.asVecMat()

• add more functions in calib3d

• make VecVecChar unmodifible
• more tests

• update to OpenCV 4.11.0
• change vector wrappers to std::vector
• fix reference of estimateAffinePartial2D
• support VideoWriter.get() and VideoWriter.set()
• use native implementation of 8U/8S -> F16 for cv.LUT()

• Refactor nearly all APIs, this version is NOT compitable with previous versions!.
• better exceptions, more concise API

• Implemented: imgproc, imgcodecs, core, video, need to be tested!
• add example

• Initial Release
• Implemented: imgproc, imgcodecs, core, video, need to be tested!